Improvement in fruit-cans



UNITE STATES PATENT Oriana.

IV. IV. LYMAN, OF WEST MERIDEN, CONNECTICUT.

IMPROVEMENT IN FRUIT-CANS.

Specification forming part of Letters lairnt No. 22.436, dated Dtcnnhrr28,1858.

To all whom it may concern.-

Be it known that I, IV. \V. LYMAN, of \Vest Meriden, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Fruit-Cans; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which Figure 1 represents in perspective the several pieces or parts separated from each other, and Fig. 2 represents a vertical section through the can as it appears when sealed up.

Similar letters of reference where they occur in the separate figures denote like parts of the can in both of them.

In the use of rubber for a packing between the cover and the jar it has been found almost impossible to turn the cover in fastening it down on the rubber without crimping it, and thus making an imperfect joint. This is owing to the tenacity with which the metal and gum adhere to each other, as one will not slip on the other freely. Metal surfaces, having less friction than the rubber, will freely and truly move on each other. Now my invention consists in the manner in which I form a tight joint between the cover-and the jar by the use of the rubber packing, but.so that the metalis not required to slip on the rubber, and consequently there is no danger of crimping, folding, or injuring the rubber packing, or of making bad joints.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

A represents the jar or can, which may be of glass or other vitrified substance or of metal. When it is made of glass or earthenware, I put a metal collar, at, around the neck of the jar, upon which there are studs or projections c 0, these being stronger and less liable to be broken off than when made of glass or earth enware. To prevent this collar from slipping around on the'neek of the can or jar a projection, 6, may be left on the can, which may take into a recess, f, in the collar, and thus prevent them from slipping one upon the other. Around the top of the jar or can there is a groove, i, into which anindia-rubber ringmay be laid. This done, the cover 13, which has a flange, m, upon it, is placed over the top of the can or jar, with its flange resting upon the rubber ring. Next the collar 0, with its flange a, is brought down over the cover B, so that the ears 0 0 will take over the studs 0 c on the collar a, and its flange it rest upon the top of said cover 13, as shown in Fig. 2. The collar 0 is now turned and the cam-slots rr taking over the studs 0 c, the cover is brought tight down upon the packing, and a perfectly air-tight joint thus made, as the press ure is brought vertically upon the rubber packing, and the metal cover is not required to slip on the rubber.

WV hen the cam is made of metal, of course the studs 0 0 can be made immediately upon the can, and thus dispense with the collar; and instead of putting the rubber packing in the groove, it may be placed on the top of either of the walls or edges that form the groove.

Having thus fully described the nature and object of my invention, what I claim therein as new, and desire to secure by Letters Patent, 1s

In combination with the groove for receiving and holding the packing, and the flange m on the cover, fitting into said groove and against the packing, the sleeve 0, with its cam-slots, and the studs on the neck of the can, for drawing the flange of the cover tight down onto the packing without crimping it, substantially in the manner specified.

WV. XV. LYMAN.

\Vitnesses:

HIRAM FOSTER, ALBERT Fos'rnn. 

